/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/DefaultSpectatorScreenController.h
virtual void RenderSpectatorScreen_RenderThread ( [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, FRHITexture2D * BackBuffer, FTexture2DRHIRef SrcTexture, FTexture2DRHIRef LayersTexture, FVector2D WindowSize )